[clug-talk] WD Green HDD's with ZFS

Royce Souther osgnuru at gmail.com
Mon Mar 26 05:58:17 PDT 2012

I like ext3/4 on top of LVM because I know it is very stable. I think I
will try ZFS on one server and stick with ext4 on LVM for the other. I know
that ext4 on LVM is fast enough to do what I need and the servers are
identical so I will be able to see how fast ZFS is.

The problem with why ZFS is not in the Linux kernel is because the license
is BSD so it will never be in the official Linux kernel. And as much as it
make Linus mad that third party vendors are able to make non-GPL modules
for the kernel, there is nothing he can do to stop it and some distro's
have packages for ZFS.

I am going to try this on one server and see if I like it. Switching back
is easy if it is no good.

On Mon, Mar 26, 2012 at 2:54 AM, Gustin Johnson <gustin at meganerd.ca> wrote:

> Even with access to nice RAID controllers, I am now solidly in the
> software (Linux only) RAID camp, unless you absolutely need the slight
> performance increase in the hardware solution.  The ability to yank the
> drives out and put them into any computer, even one without a RAID
> controller is beyond nice.
> I got burned by a failed 3ware controller.  It worked great for years,
> then when it died a replacement was hard to find.  To upgrade to a newer
> controller I had to run some software to prep the drives for the new
> controller.  Unfortunately the old drives were unaccessable until I could
> track down a replacement controller on ebay.  Not fun.
> This is less of an issue at work, though we now use a storage
> appliace/array and physical servers are rare (nearly everything lives on a
> Xen cluster).
> On Sun, Mar 25, 2012 at 10:50 PM, Andrew J. Kopciuch <akopciuch at bddf.ca>wrote:
>> On March 25, 2012, Gustin Johnson wrote:
>> > The feature that they removed is not that big of a problem if you are
>> using
>> > mdadm to create the array (which is what I do).
>> >
>> > See here for more info on this:
>> > http://en.wikipedia.org/wiki/Error_recovery_control
>> >
>> Right.   I did think about mentioning that, but forgot in my first email.
>> It's a good point to bring up.
>> Although if you are building a production quality server, I'd just as
>> soon get
>> a good RAID controller, and proper drives that work with the controller.
>> That's just me though.
>> Andy
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